NPPES file of Aug 9, 2026

Dario Martin Villamar, M.D.

Hematology & Oncology Physician · New Lenox, IL

Dario Martin Villamar, M.D. is a hematology & oncology physician with a practice address in New Lenox, Illinois, and NPI 1548791437, issued on Mar 23, 2017. Check the license (Illinois 036.152166, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1548791437
Name
Dario Martin Villamar
Credential
M.D.
Primary taxonomy
Hematology & Oncology Physician 207RH0003X
License number
036.152166 IL
Self-reported in NPPES; status is on the state search
Practice location
1850 Silver Cross Blvd, New Lenox, IL 60451
Phone
(815) 300-1400
Enumerated
Mar 23, 2017
Record last updated
Jan 6, 2024
Fax
(815) 485-4830
Medicare enrollment
Enrolled (PECOS I20231017000315); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 1850 Silver Cross Blvd

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Simona Chivu, MDHematology & Oncology Physician1942416235
  2. Gabriela Rodriguez, APRNAdult Health Nurse Practitioner1568013183
  3. Mary Ellen Weeg, AGCNS-BCClinical Nurse Specialist1417765694

Verify Dario Martin Villamar in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersIllinois Department of Financial and Professional Regulation
    Search for license 036.152166
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Illinois license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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2% more Medicare Part D claims than the average hematology & oncology physician in 2024

895 Medicare Part D claims for 154 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims. 118 claims were for opioids.

  1. Dario Villamar895
  2. Specialty average877

Most prescribed

  1. Prochlorperazine Maleate82 claims
  2. Ondansetron Hcl72 claims
  3. Anastrozole65 claims
  4. Acyclovir51 claims
  5. Hydrocodone-Acetaminophen51 claims
  6. Allopurinol37 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

The MIPS final score for 2023 (Medicare payment program): 97.7 of 100

The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score75.4
  2. Costnot scored (reweighted)
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).

2 hospitals and group practices

  1. The University OF Chicago Medical CenterChicago, IL · Acute Care Hospitals4 of 5 stars
  2. University OF ChicagoHinsdale, IL

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.

Dario Martin Villamar among 666 hematology & oncology physician records in Illinois

Dario Martin Villamar, M.D. is one of 666 hematology & oncology physician records with a practice address in Illinois. 84% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2017, is newer than 80% of them.

  • NPI issued2017 · 80% of these records are older, 17% newer
  • In a Medicare fileYes · 84% of these records are
  • In the CMS Doctors and Clinicians fileYes · 69% of these records are
  • Graduated2017 · median 2003 among the 461 with a school on file
  • Record last updated2024 · 49% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RH0003X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Hematology & Oncology Physician providers in Illinois

There are 666 hematology & oncology physician records in Illinois.

The 8 hematology & oncology physician records with the nearest ZIP codes

  1. Simona Chivu, MDNew Lenox, IL 604511942416235
  2. Riaz Elahi, MDOak Lawn, IL 604531356421325
  3. Rami Haddad, MDOak Lawn, IL 604531710072624
  4. Amar Hamad, MDOak Lawn, IL 604531598765166
  5. Mahir KhanOak Lawn, IL 604531902364938
  6. Vasantha Kumaraiah, MDOak Lawn, IL 604531245307305
  7. Rajalaxmi McKenna, M.D.Oak Lawn, IL 604531073539680
  8. Imran Nizamuddin, MDOak Lawn, IL 604531124587365

Common questions

What is Dario Martin Villamar, M.D.'s NPI number?

Dario Martin Villamar, M.D.'s National Provider Identifier (NPI) is 1548791437, issued on Mar 23, 2017. An NPI identifies a provider in billing; it is not a license.

Where is Dario Martin Villamar, M.D. located?

The NPPES record lists a practice address at 1850 Silver Cross Blvd, New Lenox, IL, 60451. Phone: (815) 300-1400. Providers update this record themselves, so call before visiting.

How can I verify Dario Martin Villamar, M.D.'s license?

NPPES lists Illinois license number 036.152166, as entered by the provider. Search the Illinois Department of Financial and Professional Regulation at https://idfpr.illinois.gov/checklicense.html. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Dario Martin Villamar, M.D. prescribe under Medicare Part D?

In 2024, Dario Martin Villamar, M.D. had 895 Medicare Part D claims for 154 beneficiaries; the average among hematology & oncology physician prescribers was 877. Part D covers Medicare prescriptions only.

What is Dario Martin Villamar, M.D.'s MIPS final score?

The 2023 MIPS final score is 97.7 of 100. The average among 454,083 clinicians with a measured score was 83.5.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.